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shifting

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Question
Why my car sticks in gear
Hey there. This maybe related to many different transmission components such as a speed sensors, the transmission control solenoid or the module itself. The transmission control solenoid controls the flow of transmission fluid inside the transmission. Every time a...
Question
Why does my car go forward in reverse?
Hello, the automatic transmission has 3 systems; electronic, hydraulic, and mechanical. What describe could be an internal mechanical failure with transmission. There also could be a hydraulic failure internal with transmission creating only the forward gears circuit to operate. The...
Question
Truck won't move while in gear
Hello and thank you for your question. The problem could be 3 different things wrong with your truck. First, look at the brake system to ensure that the brakes are not engaging when you put the vehicle in gear. If...
Question
Transmission?
Hello. Thanks for your question about your Check Engine Light (CEL) illuminating for what appears to be a transmission issue. There are both electronic and hydraulic controls in your transmission that control shifting. The electronic controls use sensor inputs and...
Question
Transmission will not shift out of 1st gear
Hello there, thank you for asking about your 2006 GMC Sierra 1500 HD. If your vehicle will not shift out of first gear, the problem is not the fuses. The problem could be a shift solenoid, but more than likely,...
Question
Transmission shifting issue
Hello. If the transmission is on the vehicle it has to be diagnosed. Although there are a lot of parts in a transmission, conceptually it is actually pretty simply. There are electronic control circuits, electrically actuated solenoids, and hydraulically actuated...
Question
transmission shifting
If you are still getting the P0720 code after replacing the sensor then you should verify the wiring connection first to the sensor and also in between the sensor and ECM. Remove the sensor and turn the drive shaft. From...
Question
Transmission shifting
Hi. It's very possible that the source of your problem is related to the transmission control module. In some cases, the sensors inside the transmission will fail to send signals to the TCM and cause the problem you're experiencing. It...
Question
Transmission problem
The VSS (Vehicle Speed Sensor) is most likely bad and needs to be replaced. The reason that the transmission shifts almost normally with it disconnected is due to the computer is using a failure memory to substitute for the shift...
Question
Transmission problem
Of course, be sure the transmission fluid level is correct, the fluid is not contaminated and the filter is not clogged. A fault like the one you are describing is likely to be due to a hydraulic control issue. If...
Question
Transmission not shifting into gear.
Either the transmission is slipping harshly or something broke inside the transmission making the gear drives not work properly. Make sure that the transmission fluid is full and red in color. If the fluid is full and red in color,...
Question
Transmission is not going into gear
Hello. If you were previously experiencing issues with the transmission due to a bad shifter cable then it may be possible that the cable has now failed completely and needs to be replaced. The clutch pedal mechanism is connected to...
Question
Transmission
An appropriate diagnostic to resolve your issue is a failure to shift inspection. Of course, first check your transmission's fluid level and condition. A really low fluid level can cause shift difficulties. Typically, if a transmission fails to automatically shift...
Question
Transmission
Hello. It sounds like your transmission is failing. I usually start by checking the transmission fluid. If it is low then this will occur. If the level is fine then I usually drop the pan and drain the fluid...
Question
Transfer case shift motor
Hello. C0327 is the trouble code for a malfunction with the transfer case encoder motor as you alluded. This is the electric motor that allows the transfer case to engage into 4wd mode. This code is commonly caused by water...
Question
Should I change my transmission fluid?
This may be a sign of low transmission fluid or a faulty transmission control solenoid. As you know, automatic transmissions use pressurized hydraulic fluid to change gears. Every time a gear change is required, the car's computer activates a transmission...
Question
Reverse doesn't work
Hello. You can visually observe the manual shift lever on the transmission as an assistant puts it into reverse. You should see the lever move into position. The positions are all within detents so there is a positive stop feel....
Question
Only drives in reverse
Hi. Your transmission has an internal problem with either the valve body, shift solenoid, clutches or torque converter. The only way to fix this problem is to rebuild the transmission or replace it with a new one. Sometimes a transmission...
Question
My transmission pops out of gear.
The software update that was performed on your vehicle maybe for a vehicle with a different transmission. Check the version of software that was installed in your car and verify what model that it refers to for your transmission.
Question
My car won't shift out of first gear
If the torque converter is defective that could cause shifting problems, and other symptoms as well. There are stall speed and hydraulic pressure tests than can assist in diagnosing the condition of the converter. Other possibilities include the external controls...

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